Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.
Hi everyone,I am using STM32L4A6 with FreeRTOS running on it. I integrate SBSFU according to UM2262 and AN5056. After jumping to application, the firmware triggered Firewall reset when calling osKernelStart() .I already turned SysTick off before jump...
I'm going to play with "Secure User Memory" and RSS feature (explained here) on STM32H753 ,and wonder if it is possible to reset the secure mode using debugger.Of course, unless RDP level 2 is active.Is there a window of time after power-up for a deb...
Hello, I've adapted SBSFU (X-CUBE-SBSFU) example projects for a STM32L4R9 in single bank (flash) mode. I get a firewall reset when accessing SRAM1 that's outside of the defined protected area. Only a small section of SRAM1 is protected by the SBSFU ...
I am trying out the sample projectSTM32CubeExpansion_SBSFU_V2.2.0/Projects/NUCLEO-H753ZI/Applications/1_Image.I have completed the following build steps:prebuild.pyBuild SECoreBinBuild SBSFUBuild UserAppThe last step postbuild.py (which is SECBOOT_EC...
Hi,I am new the the development and I have been testing the hardware aes module.I have tested against a known vector and the results differ from what is expected, I have checked the test vectors using AES provider in .NET and I get the results I expe...
I have a module that uses the STM32F091RC MCU and trying to connect it with software using C# language.At the first the connection has worked properly, then I've used the CRC32 to verify the sent data but it didn't work.Ive read the "Application note...
Hi,I have (for example) a byte array with the size of 6. Now I want to calculate its crc32 value. The first 4 bytes are no problem - I put them in as word, but what about the last 2 bytes?Thanks for the Help in advance.BRNico
Hello,I now understand that I should have asked the question differently.Let's say we have 2 applications: secured and non-secured application.The secured is placed in inetrnal flash, just as done in the demo of SBSFU,But the non secured should be pl...
I have a file from ST, not sure where it comes from but the header has:sha1_alt.c for SHA1 HASHCopyright (c) 2017, STMicroelectronicsI am getting issues with the function that call HAL_HASH_SHA1_Accumulate function.They are no checking for size/len i...
Hi,According to application note for STM32F4xx protection features ,the reverse from RDP L2 to RDP L1 is not possible due to a JTAG fuse, does this mean also that the MCU can check the fuses before checking the RDP? Is it possible to change the Level...